Declarative Exception Handling and Exception Handling in Struts Framework
Previous | Home | Next |
Declarative Exception Handling and Exception Handling in Struts FrameworkDirectory Structure of ExceptionHandlingExample in Struts 1.3 Using MyEclipse IDE
index.jsp<%@taglib uri="http://struts.apache.org/tags-html" prefix="html"%> <%@taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%> <html> <head> <title><bean:message key="label.title" /></title> </head> <body> <h3><bean:message key="label.header" /></h3> <html:form action="/exceptionExAction"> <bean:message key="label.name" /> : <html:text property="name" size="20" maxlength="20"/> <br/><br/> <html:submit><bean:message key="label.submit" /></html:submit> <html:reset><bean:message key="label.reset" /></html:reset> </html:form> </body> </html>web.xml<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>Maven Struts Examples</display-name> <servlet> <servlet-name>action</servlet-name> <servlet-class> org.apache.struts.action.ActionServlet </servlet-class> <init-param> <param-name>config</param-name> <param-value> /WEB-INF/struts-config.xml </param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>struts-config.xml<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_3.dtd"> <struts-config> <form-beans> <form-bean name="myDynaForm" type="org.apache.struts.action.DynaActionForm"> <form-property name="name" type="java.lang.String"/> </form-bean> </form-beans> <global-exceptions> <exception key="error.exception.message" type="java.io.IOException" handler="org.r4r.struts.MyExceptionHandler" path="/failed.jsp" /> </global-exceptions> <action-mappings> <action path="/exceptionEx" type="org.apache.struts.actions.ForwardAction" parameter="/index.jsp"/> <action path="/exceptionExAction" type="org.r4r.struts.MyExceptionAction" name="myDynaForm" > </action> </action-mappings> <message-resources parameter="org.r4r.struts.ApplicationResources" /> </struts-config>MyExceptionHandler.javapackage org.r4r.struts; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ExceptionHandler; import org.apache.struts.config.ExceptionConfig; public class MyExceptionHandler extends ExceptionHandler{ @Override public ActionForward execute(Exception ex, ExceptionConfig ae, ActionMapping mapping, ActionForm formInstance, HttpServletRequest request, HttpServletResponse response) throws ServletException { return super.execute(ex, ae, mapping, formInstance, request, response); } }MyExceptionAction.javapackage org.r4r.struts; import java.io.IOException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ActionMessages; public class MyExceptionAction extends Action{ public ActionForward execute(ActionMapping mapping,ActionForm form, HttpServletRequest request,HttpServletResponse response) throws Exception { ActionMessages errors = new ActionMessages(); saveErrors(request,errors); throw new IOException(); } }ApplicationResources.properties#common module error message error.exception.message = This Exception Message Generated By Struts 1.3 Exception Handler Example label.name = User Name label.submit = Submit label.reset = Reset error.name.required = User Name Resquired label.title = Struts 1.3 Exception Handler Example label.header = Struts 1.3 Exception handler Examplefailed.jsp<%@taglib uri="http://struts.apache.org/tags-html" prefix="html"%> <%@taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%> <%@taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%> <%@page import="org.apache.struts.Globals"%> <html> <head> <title><bean:message key="label.title" /></title> </head> <body> <h3><bean:message key="label.header" /></h3> <div style="color: red;"> <html:errors/> </div> </body> </html>Output
Previous | Home | Next |